Cryptorchidism in babies has a certain relationship with the mother, but it is more likely to be related to the surrounding environment and genetic factors. Cryptorchidism generally refers to abnormal testicular descent, and there are many factors that cause abnormal testicular descent, the more common ones are as follows: 1. abnormal testicular lead belt that introduces the testicle into the scrotum, resulting in the testicle not being able to descend to the scrotum from its original position; 2. congenital testicular underdevelopment, making the testicle insensitive to gonadotropin and insufficient descending power; 3. luteinizing hormone-releasing hormone produced by the hypothalamus, making The lack of LH and follicle stimulating hormone secreted by the pituitary gland can also lead to insufficient power of testicular descent. Cryptorchidism caused by endocrine factors is usually bilateral, while those caused by other factors are mostly single cryptorchidism. Sometimes cryptorchidism can be combined with inguinal hernia, and if cryptorchidism is found, timely treatment is needed. Generally speaking, the ideal age for a small child to retain fertility at fertility is 12-24 months after birth. Generally speaking the spontaneous descent of the testes is completed at 3 months of life. The decisive treatment for the absence of testicular descent should be completed at 6-12 months of life, when it belongs to the best time to do the testicular descent fixation, at the latest not later than 18 months.